Neck scarf



FIG. 1 is a front view of a neck scarf, showing my new design;

FIG. 2 is a bottom view thereof, the undisclosed top view is similar;

FIG. 3 is a rear view thereof; and,

FIG. 4 is a right side view thereof, the left side view being a mirror image. 

The ornamental design for a neck scarf, as shown and described. 